source: mainline/kernel/generic/src/console/kconsole.c@ 690ad20

Last change on this file since 690ad20 was 690ad20, checked in by Jiří Zárevúcky <zarevucky.jiri@…>, 2 months ago

Convert kio buffer to bytes (part 1)
  • Property mode set to 100644
File size: 19.2 KB
Line 
1/*
2 * Copyright (c) 2005 Jakub Jermar
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29/** @addtogroup kernel_generic_console
30 * @{
31 */
32
33/**
34 * @file kconsole.c
35 * @brief Kernel console.
36 *
37 * This file contains kernel thread managing the kernel console.
38 *
39 */
40
41#include <adt/list.h>
42#include <arch.h>
43#include <assert.h>
44#include <console/chardev.h>
45#include <console/cmd.h>
46#include <console/console.h>
47#include <console/kconsole.h>
48#include <console/prompt.h>
49#include <debug.h>
50#include <errno.h>
51#include <halt.h>
52#include <macros.h>
53#include <panic.h>
54#include <stdio.h>
55#include <stdlib.h>
56#include <str.h>
57#include <symtab.h>
58#include <sysinfo/sysinfo.h>
59#include <typedefs.h>
60
61/** Simple kernel console.
62 *
63 * The console is realized by kernel thread kconsole.
64 * It doesn't understand any useful command on its own,
65 * but makes it possible for other kernel subsystems to
66 * register their own commands.
67 */
68
69/** Locking.
70 *
71 * There is a list of cmd_info_t structures. This list
72 * is protected by cmd_lock spinlock. Note that specially
73 * the link elements of cmd_info_t are protected by
74 * this lock.
75 *
76 * Each cmd_info_t also has its own lock, which protects
77 * all elements thereof except the link element.
78 *
79 * cmd_lock must be acquired before any cmd_info lock.
80 * When locking two cmd info structures, structure with
81 * lower address must be locked first.
82 */
83
84SPINLOCK_INITIALIZE(cmd_lock); /**< Lock protecting command list. */
85LIST_INITIALIZE(cmd_list); /**< Command list. */
86
87#define MAX_SYMBOL_NAME 64
88
89static char32_t history[KCONSOLE_HISTORY][MAX_CMDLINE] = { };
90static size_t history_pos = 0;
91
92/** Initialize kconsole data structures
93 *
94 * This is the most basic initialization, almost no
95 * other kernel subsystem is ready yet.
96 *
97 */
98void kconsole_init(void)
99{
100 unsigned int i;
101
102 cmd_init();
103 for (i = 0; i < KCONSOLE_HISTORY; i++)
104 history[i][0] = 0;
105}
106
107/** Register kconsole command.
108 *
109 * @param cmd Structure describing the command.
110 *
111 * @return False on failure, true on success.
112 *
113 */
114bool cmd_register(cmd_info_t *cmd)
115{
116 spinlock_lock(&cmd_lock);
117
118 /*
119 * Make sure the command is not already listed.
120 */
121 list_foreach(cmd_list, link, cmd_info_t, hlp) {
122 if (hlp == cmd) {
123 /* The command is already there. */
124 spinlock_unlock(&cmd_lock);
125 return false;
126 }
127
128 /* Avoid deadlock. */
129 if (hlp < cmd) {
130 spinlock_lock(&hlp->lock);
131 spinlock_lock(&cmd->lock);
132 } else {
133 spinlock_lock(&cmd->lock);
134 spinlock_lock(&hlp->lock);
135 }
136
137 if (str_cmp(hlp->name, cmd->name) == 0) {
138 /* The command is already there. */
139 spinlock_unlock(&hlp->lock);
140 spinlock_unlock(&cmd->lock);
141 spinlock_unlock(&cmd_lock);
142 return false;
143 }
144
145 spinlock_unlock(&hlp->lock);
146 spinlock_unlock(&cmd->lock);
147 }
148
149 /*
150 * Now the command can be added.
151 */
152 list_append(&cmd->link, &cmd_list);
153
154 spinlock_unlock(&cmd_lock);
155 return true;
156}
157
158/** Print count times a character */
159_NO_TRACE static void print_cc(char ch, size_t count)
160{
161 // FIXME: only lock once
162
163 for (size_t i = 0; i < count; i++)
164 putstr(&ch, 1);
165}
166
167/** Try to find a command beginning with prefix */
168const char *cmdtab_enum(const char *name, const char **h, void **ctx)
169{
170 link_t **startpos = (link_t **) ctx;
171 size_t namelen = str_length(name);
172
173 spinlock_lock(&cmd_lock);
174
175 if (*startpos == NULL)
176 *startpos = list_first(&cmd_list);
177
178 for (; *startpos != NULL; *startpos = list_next(*startpos, &cmd_list)) {
179 cmd_info_t *hlp = list_get_instance(*startpos, cmd_info_t, link);
180
181 const char *curname = hlp->name;
182 if (str_length(curname) < namelen)
183 continue;
184
185 if (str_lcmp(curname, name, namelen) == 0) {
186 *startpos = list_next(*startpos, &cmd_list);
187 if (h)
188 *h = hlp->description;
189
190 spinlock_unlock(&cmd_lock);
191 return (curname + str_lsize(curname, namelen));
192 }
193 }
194
195 spinlock_unlock(&cmd_lock);
196 return NULL;
197}
198
199/** Command completion of the commands
200 *
201 * @param name String to match, changed to hint on exit
202 * @param size Input buffer size
203 *
204 * @return Number of found matches
205 *
206 */
207_NO_TRACE static int cmdtab_compl(char *input, size_t size, indev_t *indev,
208 hints_enum_func_t hints_enum)
209{
210 const char *name = input;
211
212 size_t found = 0;
213
214 /*
215 * Maximum Match Length: Length of longest matching common
216 * substring in case more than one match is found.
217 */
218 size_t max_match_len = size;
219 size_t max_match_len_tmp = size;
220 void *pos = NULL;
221 const char *hint;
222 const char *help;
223 size_t hints_to_show = MAX_TAB_HINTS - 1;
224 size_t total_hints_shown = 0;
225 bool continue_showing_hints = true;
226
227 char *output = malloc(MAX_CMDLINE);
228 if (!output) {
229 // TODO: fix the function so that it does not need allocation
230 printf("Can't complete command, out of memory.\n");
231 return 0;
232 }
233
234 output[0] = 0;
235
236 while ((hint = hints_enum(name, NULL, &pos))) {
237 if ((found == 0) || (str_length(hint) > str_length(output)))
238 str_cpy(output, MAX_CMDLINE, hint);
239
240 found++;
241 }
242
243 /*
244 * If the number of possible completions is more than MAX_TAB_HINTS,
245 * ask the user whether to display them or not.
246 */
247 if (found > MAX_TAB_HINTS) {
248 printf("\n");
249 continue_showing_hints =
250 console_prompt_display_all_hints(indev, found);
251 }
252
253 if ((found > 1) && (str_length(output) != 0)) {
254 printf("\n");
255 pos = NULL;
256 while ((hint = hints_enum(name, &help, &pos))) {
257
258 if (continue_showing_hints) {
259 if (help)
260 printf("%s%s (%s)\n", name, hint, help);
261 else
262 printf("%s%s\n", name, hint);
263
264 --hints_to_show;
265 ++total_hints_shown;
266
267 if ((hints_to_show == 0) && (total_hints_shown != found)) {
268 /* Ask user to continue */
269 continue_showing_hints =
270 console_prompt_more_hints(indev, &hints_to_show);
271 }
272 }
273
274 max_match_len_tmp = 0;
275 while ((output[max_match_len_tmp] ==
276 hint[max_match_len_tmp]) &&
277 (max_match_len_tmp < max_match_len))
278 ++max_match_len_tmp;
279
280 max_match_len = max_match_len_tmp;
281 }
282
283 /* Keep only the characters common in all completions */
284 output[max_match_len] = 0;
285 }
286
287 if (found > 0)
288 str_cpy(input, size, output);
289
290 free(output);
291 return found;
292}
293
294_NO_TRACE static cmd_info_t *parse_cmd(const char32_t *cmdline)
295{
296 size_t start = 0;
297 size_t end;
298 char *tmp;
299
300 while (isspace(cmdline[start]))
301 start++;
302
303 end = start + 1;
304
305 while (!isspace(cmdline[end]))
306 end++;
307
308 tmp = malloc(STR_BOUNDS(end - start + 1));
309 if (!tmp)
310 return NULL;
311
312 wstr_to_str(tmp, end - start + 1, &cmdline[start]);
313
314 spinlock_lock(&cmd_lock);
315
316 list_foreach(cmd_list, link, cmd_info_t, hlp) {
317 spinlock_lock(&hlp->lock);
318
319 if (str_cmp(hlp->name, tmp) == 0) {
320 spinlock_unlock(&hlp->lock);
321 spinlock_unlock(&cmd_lock);
322 free(tmp);
323 return hlp;
324 }
325
326 spinlock_unlock(&hlp->lock);
327 }
328
329 free(tmp);
330 spinlock_unlock(&cmd_lock);
331
332 return NULL;
333}
334
335_NO_TRACE static char32_t *clever_readline(const char *prompt, indev_t *indev,
336 char *tmp)
337{
338 printf("%s> ", prompt);
339
340 size_t position = 0;
341 char32_t *current = history[history_pos];
342 current[0] = 0;
343
344 while (true) {
345 char32_t ch = indev_pop_character(indev);
346
347 if (ch == '\n') {
348 /* Enter */
349 putstr("\n", 1);
350 break;
351 }
352
353 if (ch == '\b') {
354 /* Backspace */
355 if (position == 0)
356 continue;
357
358 if (wstr_remove(current, position - 1)) {
359 position--;
360 putstr("\b", 1);
361 printf("%ls ", current + position);
362 print_cc('\b', wstr_length(current) - position + 1);
363 continue;
364 }
365 }
366
367 if (ch == '\t') {
368 /* Tab completion */
369
370 size_t i = position;
371 while (current[i] && !isspace(current[i]))
372 i++;
373
374 char32_t stash = current[i];
375 current[i] = 0;
376 printf("%ls", &current[position]);
377 current[i] = stash;
378 position = i;
379
380 /*
381 * Find the beginning of the word
382 * and copy it to tmp
383 */
384 size_t beg;
385 unsigned narg = 0;
386 if (position == 0) {
387 tmp[0] = '\0';
388 beg = 0;
389 } else {
390 beg = position - 1;
391 while ((beg > 0) && (!isspace(current[beg])))
392 beg--;
393
394 if (isspace(current[beg]))
395 beg++;
396
397 wstr_to_str(tmp, position - beg + 1, current + beg);
398 }
399
400 /* Count which argument number are we tabbing (narg=0 is cmd) */
401 bool sp = false;
402 for (; beg > 0; beg--) {
403 if (isspace(current[beg])) {
404 if (!sp) {
405 narg++;
406 sp = true;
407 }
408 } else
409 sp = false;
410 }
411
412 if (narg && isspace(current[0]))
413 narg--;
414
415 int found;
416 if (narg == 0) {
417 /* Command completion */
418 found = cmdtab_compl(tmp, STR_BOUNDS(MAX_CMDLINE), indev,
419 cmdtab_enum);
420 } else {
421 /* Arguments completion */
422 cmd_info_t *cmd = parse_cmd(current);
423 if (!cmd || !cmd->hints_enum || cmd->argc < narg)
424 continue;
425 found = cmdtab_compl(tmp, STR_BOUNDS(MAX_CMDLINE), indev,
426 cmd->hints_enum);
427 }
428
429 if (found == 0)
430 continue;
431
432 /*
433 * We have hints, possibly many. In case of more than one hint,
434 * tmp will contain the common prefix.
435 */
436 size_t off = 0;
437 for (size_t i = 0; (ch = str_decode(tmp, &off, STR_NO_LIMIT)); i++)
438 if (!wstr_linsert(current, ch, position + i, MAX_CMDLINE))
439 break;
440
441 if (found > 1) {
442 /* No unique hint, list was printed */
443 printf("%s> ", prompt);
444 printf("%ls", current);
445 position += str_length(tmp);
446 print_cc('\b', wstr_length(current) - position);
447 continue;
448 }
449
450 /* We have a hint */
451
452 printf("%ls", current + position);
453 position += str_length(tmp);
454 print_cc('\b', wstr_length(current) - position);
455
456 if (position == wstr_length(current)) {
457 /* Insert a space after the last completed argument */
458 if (wstr_linsert(current, ' ', position, MAX_CMDLINE)) {
459 printf("%ls", current + position);
460 position++;
461 }
462 }
463 continue;
464 }
465
466 if (ch == U_LEFT_ARROW) {
467 /* Left */
468 if (position > 0) {
469 putstr("\b", 1);
470 position--;
471 }
472 continue;
473 }
474
475 if (ch == U_RIGHT_ARROW) {
476 /* Right */
477 if (position < wstr_length(current)) {
478 printf("%lc", current[position]);
479 position++;
480 }
481 continue;
482 }
483
484 if ((ch == U_UP_ARROW) || (ch == U_DOWN_ARROW)) {
485 /* Up, down */
486 print_cc('\b', position);
487 print_cc(' ', wstr_length(current));
488 print_cc('\b', wstr_length(current));
489
490 if (ch == U_UP_ARROW) {
491 /* Up */
492 if (history_pos == 0)
493 history_pos = KCONSOLE_HISTORY - 1;
494 else
495 history_pos--;
496 } else {
497 /* Down */
498 history_pos++;
499 history_pos = history_pos % KCONSOLE_HISTORY;
500 }
501 current = history[history_pos];
502 printf("%ls", current);
503 position = wstr_length(current);
504 continue;
505 }
506
507 if (ch == U_HOME_ARROW) {
508 /* Home */
509 print_cc('\b', position);
510 position = 0;
511 continue;
512 }
513
514 if (ch == U_END_ARROW) {
515 /* End */
516 printf("%ls", current + position);
517 position = wstr_length(current);
518 continue;
519 }
520
521 if (ch == U_DELETE) {
522 /* Delete */
523 if (position == wstr_length(current))
524 continue;
525
526 if (wstr_remove(current, position)) {
527 printf("%ls ", current + position);
528 print_cc('\b', wstr_length(current) - position + 1);
529 }
530 continue;
531 }
532
533 if (wstr_linsert(current, ch, position, MAX_CMDLINE)) {
534 printf("%ls", current + position);
535 position++;
536 print_cc('\b', wstr_length(current) - position);
537 }
538 }
539
540 if (wstr_length(current) > 0) {
541 history_pos++;
542 history_pos = history_pos % KCONSOLE_HISTORY;
543 }
544
545 return current;
546}
547
548bool kconsole_check_poll(void)
549{
550 return check_poll(stdin);
551}
552
553_NO_TRACE static bool parse_int_arg(const char *text, size_t len,
554 sysarg_t *result)
555{
556 bool isaddr = false;
557 bool isptr = false;
558
559 /* If we get a name, try to find it in symbol table */
560 if (text[0] == '&') {
561 isaddr = true;
562 text++;
563 len--;
564 } else if (text[0] == '*') {
565 isptr = true;
566 text++;
567 len--;
568 }
569
570 if ((text[0] < '0') || (text[0] > '9')) {
571 char symname[MAX_SYMBOL_NAME];
572 str_ncpy(symname, MAX_SYMBOL_NAME, text, len + 1);
573
574 uintptr_t symaddr;
575 errno_t rc = symtab_addr_lookup(symname, &symaddr);
576 switch (rc) {
577 case ENOENT:
578 printf("Symbol %s not found.\n", symname);
579 return false;
580 case EOVERFLOW:
581 printf("Duplicate symbol %s.\n", symname);
582 symtab_print_search(symname);
583 return false;
584 case ENOTSUP:
585 printf("No symbol information available.\n");
586 return false;
587 case EOK:
588 if (isaddr)
589 *result = (sysarg_t) symaddr;
590 else if (isptr)
591 *result = **((sysarg_t **) symaddr);
592 else
593 *result = *((sysarg_t *) symaddr);
594 break;
595 default:
596 printf("Unknown error.\n");
597 return false;
598 }
599 } else {
600 /* It's a number - convert it */
601 uint64_t value;
602 const char *end;
603 errno_t rc = str_uint64_t(text, &end, 0, false, &value);
604 if (end != text + len)
605 rc = EINVAL;
606 switch (rc) {
607 case EINVAL:
608 printf("Invalid number '%s'.\n", text);
609 return false;
610 case EOVERFLOW:
611 printf("Integer overflow in '%s'.\n", text);
612 return false;
613 case EOK:
614 *result = (sysarg_t) value;
615 if (isptr)
616 *result = *((sysarg_t *) *result);
617 break;
618 default:
619 printf("Unknown error parsing '%s'.\n", text);
620 return false;
621 }
622 }
623
624 return true;
625}
626
627/** Parse argument.
628 *
629 * Find start and end positions of command line argument.
630 *
631 * @param cmdline Command line as read from the input device.
632 * @param size Size (in bytes) of the string.
633 * @param start On entry, 'start' contains pointer to the offset
634 * of the first unprocessed character of cmdline.
635 * On successful exit, it marks beginning of the next argument.
636 * @param end Undefined on entry. On exit, 'end' is the offset of the first
637 * character behind the next argument.
638 *
639 * @return False on failure, true on success.
640 *
641 */
642_NO_TRACE static bool parse_argument(const char *cmdline, size_t size,
643 size_t *start, size_t *end)
644{
645 assert(start != NULL);
646 assert(end != NULL);
647
648 bool found_start = false;
649 size_t offset = *start;
650 size_t prev = *start;
651 char32_t ch;
652
653 while ((ch = str_decode(cmdline, &offset, size)) != 0) {
654 if (!found_start) {
655 if (!isspace(ch)) {
656 *start = prev;
657 found_start = true;
658 }
659 } else {
660 if (isspace(ch))
661 break;
662 }
663
664 prev = offset;
665 }
666 *end = prev;
667
668 return found_start;
669}
670
671/** Parse command line.
672 *
673 * @param cmdline Command line as read from input device.
674 * @param size Size (in bytes) of the string.
675 *
676 * @return Structure describing the command.
677 *
678 */
679_NO_TRACE static cmd_info_t *parse_cmdline(const char *cmdline, size_t size)
680{
681 size_t start = 0;
682 size_t end = 0;
683 if (!parse_argument(cmdline, size, &start, &end)) {
684 /* Command line did not contain alphanumeric word. */
685 return NULL;
686 }
687 spinlock_lock(&cmd_lock);
688
689 cmd_info_t *cmd = NULL;
690
691 list_foreach(cmd_list, link, cmd_info_t, hlp) {
692 spinlock_lock(&hlp->lock);
693
694 if (str_lcmp(hlp->name, cmdline + start,
695 max(str_length(hlp->name),
696 str_nlength(cmdline + start, (size_t) (end - start)))) == 0) {
697 cmd = hlp;
698 break;
699 }
700
701 spinlock_unlock(&hlp->lock);
702 }
703
704 spinlock_unlock(&cmd_lock);
705
706 if (!cmd) {
707 /* Unknown command. */
708 printf("Unknown command.\n");
709 return NULL;
710 }
711
712 /* cmd == hlp is locked */
713
714 /*
715 * The command line must be further analyzed and
716 * the parameters therefrom must be matched and
717 * converted to those specified in the cmd info
718 * structure.
719 */
720
721 bool error = false;
722 size_t i;
723 for (i = 0; i < cmd->argc; i++) {
724 char *buf;
725
726 start = end;
727 if (!parse_argument(cmdline, size, &start, &end)) {
728 if (cmd->argv[i].type == ARG_TYPE_STRING_OPTIONAL) {
729 buf = (char *) cmd->argv[i].buffer;
730 str_cpy(buf, cmd->argv[i].len, "");
731 continue;
732 }
733
734 printf("Too few arguments.\n");
735 spinlock_unlock(&cmd->lock);
736 return NULL;
737 }
738
739 switch (cmd->argv[i].type) {
740 case ARG_TYPE_STRING:
741 case ARG_TYPE_STRING_OPTIONAL:
742 buf = (char *) cmd->argv[i].buffer;
743 str_ncpy(buf, cmd->argv[i].len, cmdline + start,
744 end - start);
745 break;
746 case ARG_TYPE_INT:
747 if (!parse_int_arg(cmdline + start, end - start,
748 &cmd->argv[i].intval))
749 error = true;
750 break;
751 case ARG_TYPE_VAR:
752 if ((start < end - 1) && (cmdline[start] == '"')) {
753 if (cmdline[end - 1] == '"') {
754 buf = (char *) cmd->argv[i].buffer;
755 str_ncpy(buf, cmd->argv[i].len,
756 cmdline + start + 1,
757 (end - start) - 1);
758 cmd->argv[i].intval = (sysarg_t) buf;
759 cmd->argv[i].vartype = ARG_TYPE_STRING;
760 } else {
761 printf("Wrong syntax.\n");
762 error = true;
763 }
764 } else if (parse_int_arg(cmdline + start,
765 end - start, &cmd->argv[i].intval)) {
766 cmd->argv[i].vartype = ARG_TYPE_INT;
767 } else {
768 printf("Unrecognized variable argument.\n");
769 error = true;
770 }
771 break;
772 case ARG_TYPE_INVALID:
773 default:
774 printf("Invalid argument type\n");
775 error = true;
776 break;
777 }
778 }
779
780 if (error) {
781 spinlock_unlock(&cmd->lock);
782 return NULL;
783 }
784
785 start = end;
786 if (parse_argument(cmdline, size, &start, &end)) {
787 printf("Too many arguments.\n");
788 spinlock_unlock(&cmd->lock);
789 return NULL;
790 }
791
792 spinlock_unlock(&cmd->lock);
793 return cmd;
794}
795
796/** Kernel console prompt.
797 *
798 * @param prompt Kernel console prompt (e.g kconsole/panic).
799 * @param msg Message to display in the beginning.
800 * @param kcon Wait for keypress to show the prompt
801 * and never exit.
802 *
803 */
804void kconsole(const char *prompt, const char *msg, bool kcon)
805{
806 if (!stdin) {
807 LOG("No stdin for kernel console");
808 return;
809 }
810
811 if (msg)
812 printf("%s", msg);
813
814 if (kcon)
815 indev_pop_character(stdin);
816 else
817 printf("Type \"exit\" to leave the console.\n");
818
819 char *buffer = malloc(STR_BOUNDS(MAX_CMDLINE));
820 char *cmdline = malloc(STR_BOUNDS(MAX_CMDLINE));
821 if (!buffer || !cmdline) {
822 // TODO: fix the function so that it does not need allocations
823 printf("Can't start console, out of memory.\n");
824 free(buffer);
825 free(cmdline);
826 return;
827 }
828
829 while (true) {
830 char32_t *tmp = clever_readline((char *) prompt, stdin, buffer);
831 size_t len = wstr_length(tmp);
832 if (!len)
833 continue;
834
835 wstr_to_str(cmdline, STR_BOUNDS(MAX_CMDLINE), tmp);
836
837 if ((!kcon) && (len == 4) && (str_lcmp(cmdline, "exit", 4) == 0))
838 break;
839
840 cmd_info_t *cmd_info = parse_cmdline(cmdline, STR_BOUNDS(MAX_CMDLINE));
841 if (!cmd_info)
842 continue;
843
844 (void) cmd_info->func(cmd_info->argv);
845 }
846 free(buffer);
847 free(cmdline);
848}
849
850/** Kernel console managing thread.
851 *
852 */
853void kconsole_thread(void *data)
854{
855 kconsole("kconsole", "Kernel console ready (press any key to activate)\n", true);
856}
857
858/** @}
859 */
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